# coding:utf-8

from tkinter_ import *
import math
import time


def points():
    for i in range(1, 13):
        x = 200 + 130*math.sin(2*math.pi*i/12)
        y = 200 - 130*math.cos(2*math.pi*i/12)
        canvas.create_text(x, y, text=i)


def createline(radius, line_width, rad):

    global List
    global i
    List = []

    x = 200+radius*math.sin(rad)
    y = 200-radius*math.cos(rad)
    i = canvas.create_line(200, 200, x, y, width=line_width)
    List.append(i)
    print(List)

root = Tk()
root.title('Time Of Beijing')
root.resizable(0, 0)
canvas = Canvas(root, width=400, height=480, bd=0, highlightthickness=0)
canvas.pack()
canvas.create_oval(50, 50, 350, 350)
points()
while 1:
    tm = time.localtime()
    t = time.asctime(tm)
    t_hour = 0
    if tm.tm_hour <= 12:
        t_hour = tm.tm_hour
    else:
        t_hour = tm.tm_hour-12
    rad1 = 2*math.pi*(t_hour+tm.tm_min/60)/12
    rad2 = 2*math.pi*(tm.tm_min+tm.tm_sec/60)/60
    rad3 = 2*math.pi*tm.tm_sec/60
    createline(50, 6, rad1)
    createline(90, 3, rad2)
    createline(120, 1, rad3)
    l = canvas.create_text(170, 450, text=t)
    root.update()
    time.sleep(1)
    for item in List:
        canvas.delete(item)
    canvas.delete(l)

root.update()
mainloop()
